| 摘要 |
A power steering apparatus in which relative rotation between two steering shaft members connected by a resilient coupling member actuates a flap valve mechanism, the action of which controls the hydraulic pressure of a hydraulic motor to boost the power applied by manual steering, said apparatus comprising pistons which exert pressure against flap valves so as to damp the vibration of said valves, and a surge pressure absorbing apparatus in the hydraulic pressure circuit which absorbs the surge pressure generated in said circuit.
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